Nonprofits in Connecticut

Nonprofits in Connecticut. Browse 26,993 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. Clifford R French Post 22

    EIN 060684930 · Headquarters: Thomaston, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  2. Climatehaven Inc

    EIN 920306841 · Headquarters: NEW HAVEN, CT, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Clinical Hypnosis Association Corporation

    EIN 862812386 · Headquarters: Stamford, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Clinicians Cove

    EIN 992480955 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Clinton Arbor Garden Club

    EIN 066080244 · Headquarters: Clinton, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Clinton Art Society

    EIN 061563490 · Headquarters: CLINTON, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Clinton Arts Council Inc

    EIN 871085530 · Headquarters: Clinton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Clinton Arts Project Inc

    EIN 471089615 · Headquarters: Clinton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  9. Clinton Bluefish Festival Committee Inc

    EIN 061421457 · Headquarters: Clinton, CT, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  10. Clinton Cemetery Association

    EIN 060608830 · Headquarters: CLINTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Clinton Chamber of Commerce

    EIN 061094675 · Headquarters: CLINTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  12. Clinton Child Care Service Inc

    EIN 060987535 · Headquarters: CLINTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Clinton Council of Associations Inc

    EIN 061160042 · Headquarters: Clinton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Clinton Country Club Inc

    EIN 061308519 · Headquarters: CLINTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Clinton Education Foundation Inc

    EIN 204524671 · Headquarters: Clinton, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Clinton Historical Society Inc

    EIN 066046513 · Headquarters: CLINTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Clinton Housing Inc

    EIN 471511060 · Headquarters: CLINTON, CT, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Clinton Land Conservation Trust Inc

    EIN 237402115 · Headquarters: CLINTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Clinton Marine Association Inc

    EIN 510183458 · Headquarters: Clinton, CT, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Clinton Placemakers Inc

    EIN 472531623 · Headquarters: Clinton, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Clinton Rotary Foundation Inc

    EIN 300875738 · Headquarters: Clinton, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Clinton Sailing Club Inc

    EIN 811750176 · Headquarters: CLINTON, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Clinton Salsman Foundation Inc

    EIN 352397872 · Headquarters: MILFORD, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  24. Clinton Volunteer Fire Department Inc

    EIN 222951589 · Headquarters: CLINTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Clock City Temple 895

    EIN 412579266 · Headquarters: WATERBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Clocktown Police Union

    EIN 933648901 · Headquarters: Thomaston, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Clockwork Productions Inc

    EIN 060966305 · Headquarters: Torrington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Close the Gap Inc

    EIN 814876724 · Headquarters: Middletown, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Closed Loop Initiative Partners

    EIN 812935199 · Headquarters: Stamford, CT, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Clothes to Kids of Fairfield Countyinc

    EIN 474706495 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Cloud Institute and Artificial Intelligence Technologies Inc

    EIN 331296602 · Headquarters: Manchester, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Cloud Security Alliance Hartford Chapter Inc

    EIN 843679935 · Headquarters: Glastonbury, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Cloudbreak Inc

    EIN 921024420 · Headquarters: NEW PRESTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. Clover Hill School Inc

    EIN 870731871 · Headquarters: RIVERSIDE, CT, USA · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  35. Clover Street School Pta

    EIN 222583576 · Headquarters: Windsor, CT, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  36. Clovers Pig Preserve

    EIN 863667924 · Headquarters: Bristol, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Clovis Foundation Inc C/o Greenhaus Riordan & Co Llp

    EIN 061588142 · Headquarters: NEW MILFORD, CT, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  38. Clsj Foundation Inc

    EIN 061564001 · Headquarters: WEST HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. Club 2087 Inc

    EIN 300130069 · Headquarters: North Grosvenordale, CT, USA · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990

  40. Club Chefs Association of Connecticut Inc

    EIN 223073338 · Headquarters: Bethel, CT, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  41. Club Chefs of Connecticut Inc

    EIN 450967248 · Headquarters: GREENWICH, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990

  42. Club Corvette of Connecticut Inc

    EIN 061366715 · Headquarters: EAST HAVEN, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Club Destiny Inc

    EIN 270829039 · Headquarters: WINDSOR, CT, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  44. Club East Colfax Inc

    EIN 823733388 · Headquarters: Waterford, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Club Italia of Norwalk Ct Llc

    EIN 331458913 · Headquarters: NORWALK, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Club Management Association of America Connecticut Chapter Inc

    EIN 843341877 · Headquarters: GREENWICH, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990

  47. Club Uniao Portuguesa

    EIN 066068531 · Headquarters: NAUGATUCK, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Cma Education Foundation Inc

    EIN 275437946 · Headquarters: NEW CANAAN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Cmak Sandy Hook Memorial Foundation Inc

    EIN 800876773 · Headquarters: NEWTOWN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Cmta Foundation Inc

    EIN 831575313 · Headquarters: ESSEX, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Cmwp Foundation Inc

    EIN 921825896 · Headquarters: NEW HAVEN, CT, USA · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. Cnu New England Inc

    EIN 201268409 · Headquarters: HARTFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Co Sports Academy

    EIN 464447095 · Headquarters: Waterbury, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Co-counseling International USA Inc

    EIN 061531232 · Headquarters: East Hartford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Co-workers of Life - Stamford Inc

    EIN 454193881 · Headquarters: NEW CANAAN, CT, USA · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  56. Co2no Inc

    EIN 993550023 · Headquarters: Fairfield, CT, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Coach Cal Scholarship

    EIN 394631415 · Headquarters: Fairfield, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Coach Lewys Conditioning Foundation

    EIN 833977600 · Headquarters: Oakdale, CT, US · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  59. Coalition Against Casino Expansion in Connecticut

    EIN 821072305 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Coalition for a Better Wallingford

    EIN 464913140 · Headquarters: WALLINGFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. Coalition for a Sustainable Cheshire Inc

    EIN 844881095 · Headquarters: Cheshire, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Coalition for Inclusive Capitalism Usinc C/o Andersen Tax

    EIN 472359798 · Headquarters: OLD GREENWICH, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  63. Coalition for Redefining Homeownership

    EIN 364691494 · Headquarters: Planstville, CT, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  64. Coalition for Sound Growth of Norfolk Inc

    EIN 113696037 · Headquarters: NORFOLK, CT, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Coalition for Suicide Awareness - Brookfield Acts Inc

    EIN 271507200 · Headquarters: Brookfield, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  66. Coalition on Diversity & Equity Inc

    EIN 884073736 · Headquarters: Hebron, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Coalition to Cure Calpain 3

    EIN 900616879 · Headquarters: WESTPORT, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Coalition to Modify Nota Inc

    EIN 931371867 · Headquarters: Cos Cob, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Coalition to Strengthen the Sheldon Charter Oak Neighborhood Inc

    EIN 061546315 · Headquarters: Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Coalitionofapostolic Leaders C O a L Inc

    EIN 334115538 · Headquarters: Hamden, CT, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Coast Guard Academy Athletic Corporation

    EIN 931598828 · Headquarters: NEW LONDON, CT, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990

  72. Coast Guard Foundation Inc

    EIN 042899862 · Headquarters: STONINGTON, CT, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Coast Guard Foundation Inc

    EIN 320773565 · Headquarters: Stonington, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Coastal Environmental Services Inc

    EIN 412257085 · Headquarters: Mystic, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Coastal Masonic Temple Corp

    EIN 260100766 · Headquarters: Pawcatuck, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Coastal Valley Soccer Officials Association Inc

    EIN 223154686 · Headquarters: Clinton, CT, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  77. Coastal Wildlife Conservation Union Incorporated

    EIN 863670627 · Headquarters: CLINTON, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Cobble Hill Animal Sanctuary Inc

    EIN 842932699 · Headquarters: New Milford, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Cobblefield Fund Inc

    EIN 383792736 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  80. Cobra Rugby Incorporated

    EIN 815097576 · Headquarters: Fairfield, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Cocos Animal Rescue Efforts of Seymour

    EIN 275109298 · Headquarters: Seymour, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Codehers Initiative

    EIN 934206955 · Headquarters: Rocky Hill, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Codem Inc-comite Pour Le Developpement De Muzac-

    EIN 455313996 · Headquarters: Stratford, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Coeea Fund Inc

    EIN 271497607 · Headquarters: West Hartford, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Coerver Ct East Inc

    EIN 880982565 · Headquarters: Coventry, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Coffee Cup Media Inc

    EIN 931819701 · Headquarters: Bethel, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Coffee for Good Inc

    EIN 834441264 · Headquarters: GREENWICH, CT, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Coginchaug Basketball Club Llc

    EIN 223916158 · Headquarters: East Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  89. Coginchaug Football Club Inc Coginchaug Football Club Inc

    EIN 272480690 · Headquarters: DURHAM, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Coginchaug Little League

    EIN 223073648 · Headquarters: Durham, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Coginchaug Regional High School Scholarship Fund Inc

    EIN 060882459 · Headquarters: DURHAM, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Coginchaug Soccer Club

    EIN 061254201 · Headquarters: MIDDLEFIELD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Coginchaug Valley Education Foundation

    EIN 261909390 · Headquarters: Durham, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Cognitive Courage Incorporated

    EIN 392099093 · Headquarters: Unionville, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Cognizant Consumer Initiatives Inc

    EIN 863023850 · Headquarters: New Haven, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Cohanzie Fire Company 5 Inc

    EIN 060938457 · Headquarters: WATERFORD, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Cohen Veterans Network Inc

    EIN 473950655 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Col John Chester Fife & Drum Corps Inc

    EIN 223198199 · Headquarters: Wethersfield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  99. Colburn-Keenan Foundation Inc

    EIN 204634920 · Headquarters: Enfield, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  100. Colchester Alternative School-aged Total Learning Experience Inc

    EIN 061325728 · Headquarters: COLCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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